The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 11HL103
# Created Sun Dec 22 02:09:15 2024
# Orbit generated from Bernstein formalism
# Fitting 25 observations of 25
# Arc: 65.15d
# First observation: 2011/04/28
# Last observation: 2011/07/02
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.031663 -0.000000 -0.007574 0.028244 0.000000
# Chi-squared of fit: 5.39 DOF: 44 RMS: 0.08
# Min/Max residuals: -0.26 0.20
# Exact a, adot, b, bdot, g, gdot:
1.679881E-05 2.905755E-02 -4.344134E-06 -7.422209E-03 2.741913E-02 -1.836637E-03
# Covariance matrix:
3.9568E-13 -1.2714E-10 3.2459E-14 4.6674E-12 -3.1512E-11 -1.9476E-09
-1.2714E-10 9.5540E-08 -2.2466E-11 -3.7208E-09 2.4472E-08 1.6224E-06
3.2459E-14 -2.2466E-11 1.5872E-13 -3.0557E-13 -5.7274E-12 -3.7443E-10
4.6674E-12 -3.7208E-09 -3.0557E-13 1.6005E-10 -9.5559E-10 -6.3792E-08
-3.1512E-11 2.4472E-08 -5.7274E-12 -9.5559E-10 6.2771E-09 4.1754E-07
-1.9476E-09 1.6224E-06 -3.7443E-10 -6.3792E-08 4.1754E-07 2.8035E-05
# lat0 lon0 xBary yBary zBary JD0
1.993811 -82.396996 0.876670 0.017419 -0.501081 2455679.793966
# Heliocentric elements and errors
Epoch: 2455670.5000 = 2011/04/19
Mean Anomaly: 330.44983 +/- 42.778
Argument of Peri: 211.72372 +/- 62.884
Long of Asc Node: 103.91094 +/- 0.100
Inclination: 14.44128 +/- 0.186
Eccentricity: 0.15078950 +/- 0.1086
Semi-Major Axis: 42.23814301 +/- 0.7184
Time of Perihelion: 2463900.7531 +/- 11912.5
Perihelion: 35.86907475 +/- 4.6288
Aphelion: 48.60721126 +/- 4.6623
Period (y) 274.5146 +/- 7.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 4.02448091 +/- 0.0140
Ecliptic Y -36.74126382 +/- 0.1044
Ecliptic Z 1.26873162 +/- 0.0037
Ecliptic XDOT 0.00285321 +/- 0.0001
Ecliptic YDOT 0.00054594 +/- 0.0005
Ecliptic ZDOT -0.00074702 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.98278780 +/- 0.1037
Geocenter to KBO 36.47088713 +/- 0.1054
# Hcoef: 7.94
The following table shows the complete astrometric record for 11HL103. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (11HL103) followed by the observatory code and reference code for the source of the astrometry.
2011 04 28.29320 18 32 37.26 -21 13 49.8 11HL103 268 C~11qb 2011 04 28.39846 18 32 37.02 -21 13 50.1 11HL103 268 C~11qb 2011 04 30.29847 18 32 32.69 -21 13 55.9 11HL103 268 C~11qb 2011 05 04.35789 18 32 22.20 -21 14 09.9 11HL103 268 C~11qb 2011 05 04.36394 18 32 22.19 -21 14 09.9 11HL103 268 C~11qb 2011 05 04.38104 18 32 22.14 -21 14 09.9 11HL103 268 C~11qb 2011 05 04.39888 18 32 22.09 -21 14 10.0 11HL103 268 C~11qb 2011 05 04.40573 18 32 22.07 -21 14 10.0 11HL103 268 C~11qb 2011 05 04.42148 18 32 22.02 -21 14 10.1 11HL103 268 C~11qb 2011 05 27.28690 18 30 55.35 -21 16 00.4 11HL103 268 C~11qb 2011 05 27.33105 18 30 55.13 -21 16 00.7 11HL103 268 C~11qb 2011 05 27.38632 18 30 54.87 -21 16 01.1 11HL103 268 C~11qb 2011 05 29.40904 18 30 45.32 -21 16 13.7 11HL103 266 C~11qb 2011 05 29.54954 18 30 44.64 -21 16 14.4 11HL103 266 C~11qb 2011 05 30.47860 18 30 40.15 -21 16 20.1 11HL103 266 C~11qb 2011 05 30.54565 18 30 39.83 -21 16 20.4 11HL103 266 C~11qb 2011 05 31.53716 18 30 34.96 -21 16 26.8 11HL103 266 C~11qb 2011 06 01.43469 18 30 30.54 -21 16 32.3 11HL103 266 C~11qb 2011 06 01.51361 18 30 30.13 -21 16 32.9 11HL103 266 C~11qb 2011 07 02.01802 18 27 42.13 -21 20 19.8 11HL103 269 C~11qb 2011 07 02.12588 18 27 41.51 -21 20 20.7 11HL103 269 C~11qb 2011 07 02.23609 18 27 40.86 -21 20 21.6 23.2R 11HL103 269 C~11qb 2011 07 02.32100 18 27 40.40 -21 20 22.5 11HL103 266 C~11qb 2011 07 02.37545 18 27 40.07 -21 20 22.8 11HL103 266 C~11qb 2011 07 02.44216 18 27 39.70 -21 20 23.5 11HL103 266 C~11qb
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 -0.01 0.00 0.01
2 0.0003 -3.37 -0.02 -0.11 0.03
3 0.0055 -64.14 -0.11 -2.49 0.10
4 0.0166 -211.36 -0.05 -8.22 -0.03
5 0.0166 -211.50 0.06 -8.21 -0.02
6 0.0167 -212.20 0.05 -8.17 0.05
7 0.0167 -212.90 0.07 -8.23 0.01
8 0.0167 -213.18 0.06 -8.22 0.03
9 0.0168 -213.89 -0.00 -8.28 -0.01
10 0.0794 -1429.78 -0.02 -51.87 0.06
11 0.0795 -1432.87 -0.16 -52.00 0.03
12 0.0797 -1436.52 -0.13 -52.21 -0.06
13 0.0852 -1570.50 -0.03 -57.63 -0.26
14 0.0856 -1580.03 0.09 -57.82 -0.09
15 0.0881 -1643.01 0.01 -60.16 -0.04
16 0.0883 -1647.50 0.20 -60.22 0.07
17 0.0910 -1715.82 -0.06 -62.98 -0.10
18 0.0935 -1777.81 0.10 -65.19 0.08
19 0.0937 -1783.56 -0.03 -65.48 0.00
20 0.1772 -4140.33 -0.05 -172.61 -0.03
21 0.1775 -4149.03 0.02 -173.09 -0.00
22 0.1778 -4158.14 -0.09 -173.55 0.02
23 0.1780 -4164.61 0.07 -174.13 -0.01
24 0.1782 -4169.23 -0.11 -174.21 0.16
25 0.1784 -4174.43 0.15 -174.66 0.01
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
11HL103 quality flag:1 Type: 5:3EE CENTAURR CLASSICAL axisobj 42.034 62.578 41.745 ecceobj 0.149 0.621 0.135 incobj 14.455 15.063 14.493 qmin 34.468 22.655 35.173 qmax 50.818 110.392 49.121 amean 42.328 62.581 41.972 amin 41.882 55.535 41.597 amax 42.805 67.025 42.407 emean 0.154 0.624 0.137 emin 0.121 0.574 0.111 emax 0.188 0.647 0.160 imean 12.557 11.759 11.714 imin 11.535 10.049 9.906 imax 13.761 14.805 13.275 excite_mean 0.267 0.657 0.245 fracstop 1.000 0.165 1.000 cjmean 2.998 2.689 3.008 libcent 0 181.9 -180.0 -180.0 libamp 0 83.6 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 182.6 221.9 181.1 kozaiamp 180.0 180.0 180.0